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290734

Sigma-Aldrich

Dabco® 33-LV

Synonym(s):

1,4-Diazabicyclo[2.2.2]octane solution

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About This Item

Empirical Formula (Hill Notation):
C6H12N2
CAS Number:
280-57-9
Molecular Weight:
112.17
MDL number:
MFCD00006689
UNSPSC Code:
12162002
PubChem Substance ID:
24857483
NACRES:
NA.23

description

33 wt. % solution of triethylenediamine in dipropylene glycol

density

1.02 g/mL

SMILES string

C1CN2CCN1CC2

InChI

1S/C6H12N2/c1-2-8-5-3-7(1)4-6-8/h1-6H2

InChI key

IMNIMPAHZVJRPE-UHFFFAOYSA-N

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General description

Dabco® 33-LV, as a tertiary amine catalyst, has various uses in polymer applications. It is widely utilized as a catalyst in the production of flexible and rigid polyurethane foams via the reaction between isocyanates and polyols. It helps control the gel time, improve foam rise, and optimize the physical properties of the final polyurethane foam. These foams are commonly used in insulation materials, automotive applications, construction, and packaging applications. Additionally, DABCO® 33-LV can form a self-assembled monolayer (SAM) on a variety of substrates, making it a useful bidentate ligand in the field of polymers.

Dabco®33-LV (Db) is a gelling catalyst and a bidentate ligand that forms a self-assembled monolayer (SAM) on a variety of substrates. It functionalizes the surface and immobilizes the surface atoms.

Application

Db can be used:


  • As a gel catalyst to promote the gel reaction in the production of flexible and rigid polyurethane foams, microcellular foams, coatings, and elastomers. It is used to accelerate the isocyanate-polyol reaction.
  • In the synthesis of anion exchange membranes (AEMs) via electrospinning, contributing to the crosslinking between the polymers and the mechanical stability of the membrane. AEMs are further used in fuel cells, water electrolysis, redox flow batteries, and electrolyzers.
  • Db can be used in the preparation of epoxy based soybean oil for the formation of polyurethane foams.

Legal Information

DABCO is a registered trademark of Air Products & Chemicals, Inc.

Pictograms

Corrosion
GHS05

Signal Word

Danger

Hazard Statements

H315,H318

Hazard Classifications

Eye Dam. 1 - Skin Irrit. 2

Storage Class Code

10 - Combustible liquids

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Reinforcement of soy polyol-based rigid polyurethane foams by cellulose microfibers and nanoclays
Zhu M, et al.
Journal of Applied Polymer Science, 124(6), 4702-4710 (2012)
DABCO-Directed Self-Assembly of Bisporphyrins (DABCO= 1, 4-Diazabicyclo [2.2. 2] octane)
Ballester P, et al.
Chemistry?A European Journal , 11(7), 2196-2206 (2005)
Water-blown rigid and flexible polyurethane foams containing epoxidized soybean oil triglycerides
Tu Y, et al.
Journal of Applied Polymer Science, 109(1), 537-544 (2008)
Thermal and mechanical behavior of flexible polyurethane-molded plastic films and water-blown foams with epoxidized soybean oil
Tu Y, et al.
Journal of Applied Polymer Science, 111(3), 1311-1317 (2009)
David Kokel et al.
Nature chemical biology, 9(4), 257-263 (2013-02-12)
Optogenetics is a powerful research tool because it enables high-resolution optical control of neuronal activity. However, current optogenetic approaches are limited to transgenic systems expressing microbial opsins and other exogenous photoreceptors. Here, we identify optovin, a small molecule that enables
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